Trolley-stand.



M. .A. YEAKLEY.

TROLLEY STAND.

APPLICATION. men DEC. 22. 1.708. RENEWED DEC. 1.1915.

Patented July 11, 1916.

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M. A. YEAKLEY.

, TROLLEY STAND. APPLICATION FILED 05c. 22. NB-RENEWED DEC. 7. 1915.

. Patented July 11, 1916,

3 SHEETS-SHEET 2- M. A. YEAKLEY.

TROLLEY STAND. APPLICATION FILED 050.22. 1908. RENEWED DEC. 7. 1915.

1 1 91 ,055 Patented July 11, 1916.

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Application filed December 22, 1903, S

To all whom it may concern:

'Be it known that. I, MELVIN A. YEAKLEY, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Trolley-Stands, of which the following is a specification, reference being had therein to the accompanying drawings. 1

This invention relates to a trolley stand provided with a trolley pole carrieradapted .to swing down toward either end of the car. a

One object of the invention is to reduce to aminimum the friction between the trolley pole carrier and its supporting means.

. Another object of the invention is to providemeans to prevent the anti-friction dealinement. Another object of the invention is to. provide compression means which operate in the same direction to both elevate and buff the carrier.

Another object of the invention is'to pro-' vide improved. means for supporting the elevating and buffing means. A further object of the invention is -to construct the parts. of the stand in such manner that the carrier, when swung. down toward one end of the car, occupies a mini mum space vertically abovethe car.

Referring to the drawings-Figure 1 is a plan view of a trolley stand embodying my invention, the trolley pole carrier being shown in section. Fig. 2 is a side elevation, parts being broken away and in section. Fig. 3 is a section on line 3+3, .Fig. 2. Fig. 4 is a fragmentary side elevation showing the pole carrier drawn down toward one end of the trolley stand base. Fig. 5 is a detail view. Fig. 6 is a fragmentary side elevation of the trolley stand showing the pole carrier in bufiing'position. F-ig. 7 is a side elevation of a trolley stand showing a modification of aportion of the stand. Fig. 8 is a detail view of the modified portion of the stand;

In the drawings, may be suitably secured tojthe top or roof of a trolley car.

'2 indicates a trolley pole carrier for a trolley pole 2 This 'carrier2' is bifurcated at its lower end to form legs 2, 2', as shown. The means which permit the pole carrier 2 to swing in horizontal directions may be'o any preferred construction. As illustrating Specification of Letters Patent.

rial No. 468,824; Renewed December 7, 1915.

V I with each other. 1 indicates a base which;

onro, Assrenon'ro JOHN E. MoLAIN, on CANTON,

; Patented July 11,1916. Serial No. 65,473. i

one form of sucl1.means,I have shown a stud 3 secured to the base 1 and a casing 4, preferably an inverted cup, adapted to set over and rotate about the stud. Mounted between.

the 'stud3 and easing 4 are sets of anti-frict1on bearlngs 57,. 6, preferably arranged near oppositeends of the stud 3.

7 indicates a sleeve surrounding the stud ,3, and arrangedtospace the bearings 5, 6. A bolt 8 screws into the casing 4 and enters an aperture or slot 7" in the sleeve, to lock the casing 4'and' the sleeve together.

9 indicates a nut engaging the outer end of the stud 3 foradjustingfand holding the bearings 5, 6, and sleeve 7 in proper relation to each other. I

10' indicates a rod or arm fixed to or formed integral with the casing 4.

11 indicates a T-shaped cross head carried by and slidably supported upon the free end ofsaid rod, and having at its opposite ends heads 11, 11,,that are abutment surfaces 11", 11. r 13, 13, indicate combined elevating and bufiing springs eachengaging atone end an abutment surface 11-. I 3,

1'8, 18, indicate apair of thrust members,

preferably arranged parallel to each other the outer sides of the carrier legs 2.

preferably detachandon 14 indicates a collar formed with springably securedto each thrust ,member and against which the inner end of: the adjacent spring 13 bears.

The guiding and supporting devices for thespring-engaging ends of the thrust memor casings 12 which inclose the springs 13. Theouter end-ofieach cylinder 12 is open and partially incloses one of thezabutment heads 11. on the cross head 11. I

The pivotal supporting means between the horizontally rotatable casing 4 and the trolley carrier 2 which permit the latter to swing in vertical directions, comprise substantially a series of anti-friction bearing elements having rolling contact engagement Of these means, 15 indicates a vertically'arranged flat bearing surface formed on or secured tothe' oneside of the'casing 4. 16 indicates .acontact ele-' bers preferably comprise a pair of cylinders mentsuch as a pinor rod, having .a rounded portion 16 arranged to engagewith the surface15; In order to provide a rolling contact for the contact elements upon which the f carrier 2 is fulcrumed, the pin 16 isarranged atone side of the axis upon which'the carcarried by the T-shaped rier swings in vertical directions. The opposite ends of the pin 16 fit into apertures 16 formed in the legs 2, 2 of the pole carrier 2. 16 indicate keys which may be used for securing the pin 16 in the apertures 16". 17 indicatesa slot formed in the strut rod 10 to permit the pin 16 to roll from top to bottom of the surface 15. Preferably, the bearing surface 15 is approximately as wide as the case 1 to give a long bearing for the fulcrum pin 16.

19, 19, indicate elongated fiat bearing surfaces formed on one end of each thrust member 18 and arranged on opposite sides of its axis.

20, 20, indicate rounded contact elements, preferably pinsor rods, secured to and projecting laterally from the outer sides of the carrier legs 2, 2, and in proper position to cooperate with and having rolling contact with the bearings 19,19, respectively.

21, 21, indicate blocks or cams provided on the inner sides of the legs 2, 2, having guide surfaces 21, 21*, which move between a pair of guide lugs 22, 22, arranged on either side of the casing. It will be understood that the guide surfaces 21 and the lugs 22 are slightly separated and do not engage with each other during the normal swinging movements of the carrier 2. But should the trolley stand base or pole carrier be suddenly jarred at any time, the blocks 21 will immediately engage with certain of the guide lugs 22 and operate to prevent the dislodgment of the pole carrier '2, and to keep the contact elements in proper alinement or operative relation.

23 indicates elongated grooves formed in the upper and lower sides of the'abutments 11 and extending longitudinally of the cylinders 12. In each ball 2% which is free to roll from end to end of the groove. The open end of each cylinder 12 fits over the balls 2% and has rolling engagement with the said balls. This con struction forms an anti-friction sliding support between each cylinder .12 and an abutment 11, and at the same time forms a pivotal connection between these parts so that the contact-engaging end of the thrust members can move or swing up and down slightly.

In the modification of the invention shown in Figs. 7 and 8, the guiding and supporting device for each of the thrust members comprises a rod 25' preferably formed integral with the thrust member 18 at one end, and having a boss 25 with which one end of the combined elevating'and buliing spring 13 engages. In this form of, the invention the springs surround the guiding and supporting device. The opposite end of the said rod 25 extends into a hollow abutment 26 cross head 11. 27 indicates longitudinally groove is provided a arranged grooves its free end! 28 indicates balls located in said grooves and having sliding engagement with the inner surface of the abutment 26. 29 indicates'an abutment surface for the spring 13 provided on'the inner end of the abutment 26. r

The combined elevating and buliing springs are preferably of such length that when they are compressed they do not engage with the guiding and supporting devices for the thrust members andcreate friction, 2'. 0., they do not buckle.

30 indicates a brush which conducts the current from the casing 4 to the stud 3.

In Figs. 1, 2 and 3 I have shown the trolley pole supported vertically by the springs 13 cooperating through the contact elements 1920, 1920, and 1516. In these views the pin 16 is substantially midway between the upper and lower edges of the bearing 15. Referring to Fig. 1, it will be seen that the trolley pole is inclined from the vertical toward one end of the car. In this position of the pole the contacts 1920 are in cooperation and act through the thrust members 18 to compress the springs 13, and. the pin 16 has rolled down the bearing 15 toward its lower edge.

In Fig. 6 the pole is represented in the position it occupies just after it has left the vire and the springs 13 have forced the free end violently forward past the normal vertical position. In this position of the pole, it will be seen that the contacts 19, 20, have come into cooperation and act th"0ugh the thrust members to compress the springs from the same end thereof as did the cooperation of the contacts 19, 20, and that the pin 16 is above its mid position on the bearing 15. By this construction, one set of contact devices, 1920, operates to support the pole carrier and to compress the springs 13 away from the axis of the carrier when the free end of the pole is at one side of the central vertical transverse plane of the trolley stand, and another. set of contact devices, 19-20 operates to compress the springs in the same direction when the free end of the pole is on the opposite side of the said vertical plane. It will also be obvious from the construction just described, that the pole may be drawn down toward either end of the car without swinging the casing 4 and the elevating springs 13 about theaxis of the connection which permits the movement of the pole in horizontal directions, as is largely customary at the present time.

Many alterations in construction, and many widely differing embodiments and applications of my invention will suggest themselves to those skilled in the art of making trolley stands, without departing from the scope and spirit thereof. My disclosures and description herein are purely illustra- 7 formed .on opposite sides of the rod 25 near the carrier to swing in vertical directions,

one of said contact elements having rolling contact with the other element.

2. The combination of supporting means, a trolley pole carrier arranged to swing in vertical directions, a member carried by the said carrier and having rolling contact with the supporting means, and means operating to elevate the said carrier.

3; The combination of supporting means, a trolley pole carrier arranged to swing in vertical directions, a member carried by the said carrier and having rolling contact with the supporting means, and to elevate the said carrier and maintain said member in engagement with the supporting means.

1. In a trolley stand, the combination of a support, a trolley pole carrier, means for 'fulcruming the carrieron the said support, said means comprising abearing and a member having rolling contact engagement there- .with, and means for elevating the carrier.

5. Ina trolley stand, the combination of a support provided with a bearing, a trolley polecarrier, and a curved contacting member fixed to said carrier and arranged to roll on the surface of said bearing as the pole swings in vertical directions. 6. In a trolleystand, the combination. of a support provided with a bearing, a trolley pole carrier provided with a fixed curved contacting member arranged to roll on the surface of said bearing as the pole swings in vertical directions, and means for maintaining the said contact member in engagement with said bearing.

7 The combination of a support, a trolley pole carrier, a bearing, a rounded contact element stationarily carried by said carrier and forming an axis about which the carrier swings in vertical directions, the said contact element having rolling contact with said bearing, whereby the axis of the carrier shifts during the movement thereof, and means for elevating the carrier.

8. The combination of a support provided with a vertically arranged plane bearing, a trolley pole carrier, a contact element fixed to and movable with said carrier and arranged to have rolling contact with said bearing, and means normally tending to elevate the carrier, the said elevating means cooperating with the contact element and means operating bearing to swingably support the said car rler. V

9.. The combination of asupport, a pole carrier having spaced legs, a fulcrum member extending between said legs and ar ranged to roll on said support topermit vertical swinging movement of' said carrier, and means for elevating the carrier.

10. The combination of a support,"a pole carrier having spaced legs,,a fulcrum member extending between andfixed to. said legs and arranged to roll QnSaidsuppOrt to permit vertical swinging movement of said carrier, and means for elevating the carrier.

11. The combination ley pole carrier arrangeda-to swing in vertlcal directions, a contact carried by the carrier having rolling engagement with said support, an elevating member, and a separate contact carried by the carrier having rolling engagement with the said elevating member. I v

12. Thecombination of, a support provided with a bearing surface, an'elevati'ng member provided with abearing surface, a trolley pole carrier having contact elements movable bodily with said carrier and engage ing with and movable along said bearing surfaces of they support and elevating member for swingingly supporting said carrier, and means for operating said elevating member.

13. The combination of' a support provided with a plane bearing surface, an elevating member provided with a plane bearing surface, arranged in a plane substantiallyparallel to the bearing surface of'said support, a trolley pole carrier havingfcone tact elements movable bodily with said carrier and engaging with and movable along said bearing surfaces of the support and elevating member for swingably supporting said carrier, and means for operating said elevating member.- V I 1 1. In a trolley stand, the combination of supporting means, a trolley pole carrier, an elevating member, a set of contact elements between the carrier and the supporting means, and anotherset of contact elements between the carrier and said elevating memsets of contact elements comprlslng a bearing and a member having ber, each of said tical directions toward either end of the supof a support, a troltrolley pole carrier,

porting means, said pivoting means includ ing a bearing and a member having rolling contact therewith, and means for returning the carrier to vertical position.

17. In a trolley stand, the combination of supporting means, a trolley pole carrier, meansfor pivoting the carrier on the supporting means to permit it to swing in ver tical directions "toward either end of the supportingmeans, said pivoting means including a bearing and a member having rolling contact therewith, and means operating in the same direction for returning the carrier to vertical position when swung to either side of such position.

18. The combination of a support having a bearing, a pivot element engaging said bearing and arranged to roll therealong toward and from its opposite ends, a pole carrier fixed to and movable with said pivot element, whereby it is swingable toward the opposite ends of said support, and means 7 tending to swing the carrier upwardly.

vertical position and 19. In a trolley stand, the combination of a support provided with a bearing, a pole carrier, a rounded contact element carried by the carrier and engaging the bearing midway between its ends when the pole is in vertical position and arranged to roll on the bearing toward either end thereof accordingly as the pole is swung to either side of its vertical position, and means for elevating the carrier when swung in either direction.

20. In a trolley stand, the combination of a support provided with a bearing, a pole carrier, a rounded contact element carried by the carr'er and engaging the bearing midway between its ends when the pole is in vertical position and arranged to roll on the bearing toward either end thereof accordingly as the pole is swung to either side of its vertical position, and a spring for elevating the carrier when swung in either direction.

21. In a trolley stand, the combination of a support provided with a bearing, a pole carrier, a rounded contact element carried by the carrier and engaging the bearing midway between its ends when the pole is in arranged to roll on the bearing toward either end thereof accordingly as the pole is swung to either side of its vertical position, and a spring acting in one direction for elevating the carrier when swung in either direction.

22. The combination of a support having a bearing, a trolley pole carrier having a member arranged to roll on said bearing and form a pivot for the carrier and permit it to swing toward either end of said su port, and an elevating device having engagement with said carrier on opposite sides of said member when the carrier is in normal vertical position and arranged to act on said carrier at one side of said member when the carrier is moved to either side of its normal position.

23. In a trolley stand, the combination of supporting means, a trolley pole carrier, means for elevating the carrier, pivot elements between the carrier and said supporting means permitting the carrier to swing vertically to opposite sides of a substantially vertical position, an element carried by the carrier and having rolling contact with the elevating means when the carrier swings downwardly toward one end of the supporting means, and a separate element carried by the carrier and having rolling contact with the elevating means when the carrier swings downwardly toward the 0pposite end of the supporting means.

24. The combination of a trolley pole carrier, means for supporting the carrier to swin in vertical directions, an elevating mem or arranged to engage the carrier, a rod secured at one end to said elevating member, an elevating spring surrounding said rod for actuating the elevating inemher, and means for, pivotally and slidably supporting the opposite end of said rod.

25. The combination of a trolley pole carrier, means for supporting the, carrier to swing in vertical directions, an elevating member arranged'to engage the carrier, a rod secured at one endto said elevating member, an elevating spring SUIIOUDCllIlg said rod for actuating the elevating member, and anti-friction means for slidably supporting the opposite ends of said rod.

26. The combination of supporting means, a trolley pole carrier pivoted to the supporting means so as to swing in vertical directions, an elevating member arranged tobe engaged by the carrier, a rod connected to the elevating member at one end, an abutment, a spring interposed between said abutment and said elevating member and surrounding said rod for operating the ele vating member, and means for supporting the rod at its opposite end in the said abutment, the said means permitting the rod to move longitudinally and the elevating mem ber vertically.

27. The combination of supporting means, a trolley pole carrier pivoted to the supporting means so as to swing in vertical directions, an elevating member arranged to be engaged by the carrier, a rod connected to said elevating member at one end, an abutment, formed With an opening, and a spring interposed between said abutment and said elevating member for operating the latter, the opposite end of the rod being supported in the opening in the abutment to slide longitudinally and permit said elevating member to move in vertical directions. I

28. The combination of supporting means,

a trolley pole carrier pivoted to the supporting means so as to swing in vertical directions, an elevating member arranged to be engaged by the carrier, a rod connected to said elevating member at one end, an abutment formed with an opening into which the opposite end of the rod extends, a spring interposed between said abutment and said elevating member, 'and anti-friction means interposed between the rod and the walls of the opening for slidably supporting the rod on the said abutment.

29. In a trolley stand, the combination of supporting means, a trolley pole carrier, means, comprising a bearing and a rounded element having rolling contact engagement therewith, for fulcruming the carrier on the supporting means, and means for preventing displacement of said element relative to the bearing.

30. In a trolley stand, the combination of supporting means, a trolley pole carrier, means, comprising a bearing and a rounded element having rolling contact engagement therewith, for fulcruming the carrier on the supporting means, and a pair of cooperating elements carried by the supporting means and carrier for preventing disalinement of the elements of said fulcruming means.

31. In a trolley stand, the combination of a support, a trolley pole carrier having legs arranged on opposite sides of said support, a rounded contact element supported at its opposite ends by said legs and arranged to roll on said support therebetween to form a pivot for said carrier, and a plurality of elements carried by one of the legs and said support and cooperating to prevent displacement of the contact element relative to said support.

32. The combination of a support, a pole carrier, means for pivoting the carrier on the support, means for elevating the carrier, a pair of spaced devices carried by said support, and a member carried by the carrier and having rotary movement between and cooperating with said devices to prevent displacement of the carrier relative to said support.

33. The combination of a support, provided with a bearing and pairs of spaced members arranged at opposite sides of said bearing, a pole carrier having bifurcations, a pivot element supported at its opposite ends by said bifurcations and engaging the bearing therebetween, and a device carried by each bifurcation and arranged to rotate between the adjacent pairs of members and cooperating therewith to prevent displacement of the carrier relative to said support.

34. The combination with a base and a trolley pole carrier, of a support mounted to rotate on said base about a vertical axis, and

Copies of this patent may be obtained for means for fulcruming said carrier to swing in vertical directions, the said fulcruming means including two cooperating elements carried respectively by said support and said carrier, the element carried by said carrier having rolling contact with the other element.

35. The combination with a base and a trolley pole carrier, of a support arranged to rotate on the base about a vertical axis, and means for pivotally supporting the carrier to swing in vertical directions, the said means including a pair of contact elements stationarily carried by said support and said carrier and having rolling contact with each other.

36. The combination with a base and a trolley pole carrier, of a support mounted to rotate on the base about a vertical axis, means for fulcruming said carrier on the support to swing in vertical directions, the said fulcruming means comprising two cooperating elements carried respectively by the support and said carrier, the element carried by said carrier having rolling contact with the other element, and means for elevating the carrier.

37. The combination with a base and a trolley pole carrier, of a support mounted to rotate on the base about a vertical axis, means for pivotally supporting the carrier to swing in vertical directions, the said means including a pair of contact elements stationarily carried by said support and said carrier and having rolling contact with each other, and means for elevating the carrier.

38. The combination with a base and a trolley pole carrier, of a support mounted to rotate on said base about a vertical axis, rolling contact anti-friction elements between said carrier and movable support for pivotally supporting the carrier to swing in vertical directions, and springs for holding the said rolling contact elements in engagement.

39. The combination with a base and a trolley pole carrier, of a support mounted to rotate on the base about a vertical axis, devices for pivotally supporting the carrier to swing in vertical directions, the said devices including a pair of contact elements stationarily carried by said support and said carrier and having rolling contact with each other, and combined means for elevating and buffing the carrier.

In testimony whereof I aflix my signature, in the presence of two witnesses.

MELVIN A. YEAKLEY.

Witnesses:

V. C. FINNEY, H. A. STALEY.

Washington, D. G. 

